Thank you! The sphere influence effect is a 2d pointlight and the blocking objects have 2d shadowcaster on them. The real check is made by doing a raycast in certain layers after a distance check for the robots on the scene to the mais character.
We wanted to put this feedback on the controlled robots, but we didn't had the time. Things got a little rushed at the end haha But when we can upload changes to the game after the jam we'll make this upgrade for sure. Thanks for the feedback :D